Glenn Schneider et al 2018 AJ 155 77
The HR 4796A ringlike debris disk is revealed by Hubble to be embedded within a much larger, morphologically complex, and biaxially asymmetric exo-ring scattering structure.
Peter Camps et al 2018 ApJS 234 20
Dust-attenuated and dust emission fluxes are presented for hundreds of thousands of sufficiently resolved simulated galaxies in the EAGLE suite of cosmological hydrodynamical simulations.
Kimberly R. Sokal et al 2018 ApJ 853 120
New high-resolution near-infrared spectroscopic observations with (IGRINS) of TW Hya suggest the star has an age of 8 Myr, which is well past the median life of gaseous disks.
Joseph E. Rodriguez et al 2018 AJ 155 72
Three small transiting super-Earth planets were found orbiting GJ 9827 — a bright K-dwarf star and the closest exoplanet host discovered by K2 to date — with orbital periods of 1.2, 3.6, and 6.2 days.
X. L. Yan et al 2018 ApJL 853 L18
A spectacular eruptive flare in September 2017 allowed for the simultaneous observation of a flux rope eruption followed by the inflow, the formation of a current sheet, and a cusp structure.
Theodoros Bitsakis et al 2018 ApJ 853 104
The age distribution of 1,319 star clusters detected by a fully-automated method in the central 18 deg2 of the Small Magellanic Cloud suggests enhanced cluster formation around 240 Myr ago.